Re: [PATCH] virtio-net: lower min ring num_free for efficiency

2019-08-15 Thread Jason Wang
On 2019/8/15 下午4:36, 冉 jiang wrote: On 2019/8/15 11:17, Jason Wang wrote: On 2019/8/15 上午11:11, 冉 jiang wrote: On 2019/8/15 11:01, Jason Wang wrote: On 2019/8/14 上午10:06, ? jiang wrote: This change lowers ring buffer reclaim threshold from 1/2*queue to budget for better performance.

Re: [PATCH] virtio-net: lower min ring num_free for efficiency

2019-08-15 Thread Jason Wang
On 2019/8/15 下午4:36, 冉 jiang wrote: On 2019/8/15 11:17, Jason Wang wrote: On 2019/8/15 上午11:11, 冉 jiang wrote: On 2019/8/15 11:01, Jason Wang wrote: On 2019/8/14 上午10:06, ? jiang wrote: This change lowers ring buffer reclaim threshold from 1/2*queue to budget for better performance.

Re: [PATCH] virtio-net: lower min ring num_free for efficiency

2019-08-14 Thread Jason Wang
On 2019/8/15 上午11:11, 冉 jiang wrote: On 2019/8/15 11:01, Jason Wang wrote: On 2019/8/14 上午10:06, ? jiang wrote: This change lowers ring buffer reclaim threshold from 1/2*queue to budget for better performance. According to our test with qemu + dpdk, packet dropping happens when the guest is

Re: [PATCH] virtio-net: lower min ring num_free for efficiency

2019-08-14 Thread Jason Wang
On 2019/8/14 上午10:06, ? jiang wrote: This change lowers ring buffer reclaim threshold from 1/2*queue to budget for better performance. According to our test with qemu + dpdk, packet dropping happens when the guest is not able to provide free buffer in avail ring timely with default 1/2*queue.